Chestnut-vented Nuthatch vs Krüper's Nuthatch

Chestnut-vented Nuthatch

Sitta nagaensis

Tiny15 gForest

The range of the chestnut-vented nuthatch overlaps with that of the Burmese nuthatch (S. neglecta). However, the chestnut-vented nuthatch is easily distinguished by the colour of its underparts, and the lack of contrast between the sides of the head and the throat, whereas the other species has white chins, cheeks, and parotid region contrasting with brick-red to orange-brown underparts. However, in the chestnut-vented nuthatch, some individuals in fresh plumage (especially in S. n. montium) may have underparts almost as buff as some Burmese nuthatch females or juveniles. Voice: The chestnut-vented nuthatch's calls are varied, with squeaky sit or sit-sit sounds, repeated more or less rapidly with various inflections and in irregular series. Similar but drier tchip or tchit sounds are sometimes made, often in a trill reminiscent of the alarm of a Eurasian wren (Troglodytes troglodytes).

ID text from Wikipedia, CC BY-SA 4.0

Photo: PampaSorro · CC BY 4.0

Krüper's Nuthatch

Sitta krueperi

Tiny12 gForest

The Krüper's nuthatch is a small to medium-sized nuthatch, measuring 12.5 centimetres (4.9 in) in length. In males and females, the folded wing measures 71–81 millimetres (2.8–3.2 in) and 68–74 millimetres (2.7–2.9 in) respectively, the tail 33–40 millimetres (1.3–1.6 in) and 33–38 millimetres (1.3–1.5 in). The bill measures 17.9–20.2 millimetres (0.70–0.80 in) and the tarsus 16.9–19.3 millimetres (0.67–0.76 in). The adult male weighs 10–14.3 grams (0.35–0.50 oz). Voice: The Krüper's nuthatch is a noisy bird, and is often easily detected and identified by its calls. The contact call is a dvui, sometimes made in a dui-dui-dui-dui series and reminiscent of the European greenfinch (Chloris chloris). When agitated, it produces a rough èèhch reminiscent of the Eurasian jay (Garrulus glandarius) or a dry puik.

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) Ульяна Лалак, some rights reserved (CC BY), uploaded by Ульяна Лалак · cc-by

Photos and recordings are credited to their authors under the licence shown. Full profiles: Chestnut-vented Nuthatch and Krüper's Nuthatch.